lavf/rawdec: Do not mark streams from raw subtitle demuxers as data streams.

Improves "ffmpeg -i" output for raw dvbsub files.

libavformat/rawdec.c

@@ -91,6 +91,17 @@ fail:
     return ret;
 }
 
+int ff_raw_subtitle_read_header(AVFormatContext *s)
+{
+    AVStream *st = avformat_new_stream(s, NULL);
+    if (!st)
+        return AVERROR(ENOMEM);
+    st->codecpar->codec_type = AVMEDIA_TYPE_SUBTITLE;
+    st->codecpar->codec_id = s->iformat->raw_codec_id;
+    st->start_time = 0;
+    return 0;
+}
+
 int ff_raw_data_read_header(AVFormatContext *s)
 {
     AVStream *st = avformat_new_stream(s, NULL);

libavformat/rawdec.h

@@ -41,6 +41,8 @@ int ff_raw_audio_read_header(AVFormatContext *s);
 
 int ff_raw_video_read_header(AVFormatContext *s);
 
+int ff_raw_subtitle_read_header(AVFormatContext *s);
+
 int ff_raw_data_read_header(AVFormatContext *s);
 
 #define FF_RAWVIDEO_DEMUXER_CLASS(name)\
@@ -83,7 +85,7 @@ AVInputFormat ff_ ## shortname ## _demuxer = {\
     .name           = #shortname,\
     .long_name      = NULL_IF_CONFIG_SMALL(longname),\
     .read_probe     = probe,\
-    .read_header    = ff_raw_data_read_header,\
+    .read_header    = ff_raw_subtitle_read_header,\
     .read_packet    = ff_raw_read_partial_packet,\
     .extensions     = ext,\
     .flags          = flag,\

libavformat/version.h

@@ -33,7 +33,7 @@
 // Also please add any ticket numbers that you believe might be affected here
 #define LIBAVFORMAT_VERSION_MAJOR  58
 #define LIBAVFORMAT_VERSION_MINOR  23
-#define LIBAVFORMAT_VERSION_MICRO 100
+#define LIBAVFORMAT_VERSION_MICRO 101
 
 #define LIBAVFORMAT_VERSION_INT AV_VERSION_INT(LIBAVFORMAT_VERSION_MAJOR, \
                                                LIBAVFORMAT_VERSION_MINOR, \